Constraining theories of gravity by GINGER experiment
Dipartimento di Fisica Ettore Pancini, Università di Napoli Federico II and INFN sez. di Napoli, Complesso Univ. Monte Sant’Angelo, via Cintia, Napoli, Italy
2 Dipartimento di Fisica Enrico Fermi, Università di Pisa, Largo B. Pontecorvo 3, Pisa, Italy
3 INFN Sez. di Pisa, Largo B. Pontecorvo 3, Pisa, Italy
4 INFN-National Laboratories of Legnaro, viale dell’Università 2, 35020, Legnaro, PD, Italy
5 CNR-SPIN and INFN, Napoli, Complesso Univ. Monte Sant’Angelo, via Cintia, Napoli, Italy
6 Scuola Superiore Meridionale, Largo S. Marcellino 10, 80138, Napoli, Italy
Accepted: 28 March 2021
Published online: 12 April 2021
The debate on gravity theories to extend or modify general relativity is very active today because of the issues related to ultraviolet and infrared behavior of Einstein’s theory. In the first case, we have to address the quantum gravity problem. In the latter, dark matter and dark energy, governing the large-scale structure and the cosmological evolution, seem to escape from any final fundamental theory and detection. The state of the art is that, up to now, no final theory, capable of explaining gravitational interaction at any scale, has been formulated. In this perspective, many research efforts are devoted to test theories of gravity by space-based experiments. Here, we propose straightforward tests by the GINGER experiment, which, being Earth based, requires little modeling of external perturbation, allowing a thorough analysis of the systematics, crucial for experiments where sensitivity breakthrough is required. Specifically, we want to show that it is possible to constrain parameters of gravity theories, like scalar–tensor or Horava–Lifshitz gravity, by considering their post-Newtonian limits matched with experimental data. In particular, we use the Lense–Thirring measurements provided by GINGER to find out relations among the parameters of theories and finally compare the results with those provided by LARES and Gravity Probe B satellites.
© The Author(s) 2021. corrected publication 2021
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